Question

Factorize :-

$2y^{3} + y^{2} - 2y - 1$


`Chapter - Polynomials

Explanation Needed!!​

Answer 1

$\bf{2 {y}^{3} + {y}^{2} - 2y - 1}$

$\rm{y(2y + 1) - 1(2y + 1)}$

$\rm{(2y + 1)( {y}^{2} - 1) }$

$\rm{(2y + 1)(y + 1)(y - 1)}$

Answer 2

GIVEN :-

$\large\red \dashrightarrow\bold\red{2y^{3} + y^{2} - 2y - 1}$

SOLUTION :-

$\large\red \dashrightarrow\bold\red{3y {}^{2} + y - 3y - 1}$

$\large\red \dashrightarrow\bold\red{y \times (3y + 1) - (3y + 1)}$

$\large\green \dashrightarrow\bold\green{FINAL \: \: ANSWER}$

$\large\red \dashrightarrow\bold\blue{(3y + 1) \times (y - 1)}$

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